Consider 3 molecules of galactose: (write only the whole number; no decimal places) a. How many turns of Krebs Cycle will these molecules undergo for complete oxidation? b. How many moles of ATP are produced upon complete oxidation via malate-aspartate shuttle? c. If all the galactose molecules oxidize via pentose phosphate pathway (oxidative stage only), how many moles of NADPH will be produced?
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- Consider the complete oxidation of one mole of simple TAG containing behenic acid residues (22:0). I. For one mole of the fatty acid residue, determine the following: a. What is the number of ATP yield obtained from the oxidation of acetyl CoA entering the TCA cycle and ETC b. What is the number of ATP yield obtained from NADH coming from the complete β-oxidation of the fatty acid residue c. What is the number of ATP yield obtained from FADH2 coming from the complete β-oxidation of the fatty acid residue d. What is the number of net ATP yield of ATP in the complete oxidation of the fatty acid residue II. What is the net ATP yield for the complete oxidation of all the fatty acid residues of the simple TAG? (Note: glycerol backbone is not included)Decylic acid is a saturated fatty acid that occurs naturally in coconut oil and palm kernel oil. Calculate the net ATP yield when decylic acid undergoes complete B oxidation. The formula of decylic acid is shown below: (Given: The oxidation of one NADH yields 2.5 ATP; the oxidation of one FADH2 yields 1.5 ATP; and the oxidation of one acetyl CoA yields 10 ATP.) O 50 ATP O 52 ATP 66 ATP OH O 64 ATPConsider the carbohydrate maltose. a. How many molecules of acetyl CoA are formed from its complete catabolism?b. How many rounds of Citric acid Cycle must occur to complete catabolism?c. How many rounds of electron transport chain and oxidative phosphorylation?d. Calculate the number of molecules (moles) of ATP formed (net) by the complete catabolismof maltose (show your calculation).e. Calculate number of moles of ATP formed per gram of maltose metabolized (molar mass:342.3 g/mol).
- Consider the complete oxidation of one mole of simple TAG containing behenic acid residues (22:0). I. For one mole of the fatty acid residue, determine the following: a. ATP yield obtained from the oxidation of acetyl CoA entering the TCA cycle and ETC b. ATP yield obtained from NADH coming from the complete β-oxidation of the fatty acid residue c. ATP yield obtained from FADH2 coming from the complete β-oxidation of the fatty acid residue d. net ATP yield of ATP in the complete oxidation of the fatty acid residue II. What is the net ATP yield for the complete oxidation of all the fatty acid residues of the simple TAG? (Note: glycerol backbone is not included)Consider the complete oxidation of one mole of simple TAG containing behenic acid residues (22:0). I. For one mole of the fatty acid residue, determine the following: a. ATP yield obtained from the oxidation of acetyl CoA entering the TCA cycle and ETC b. ATP yield obtained from NADH coming from the complete β-oxidation of the fatty acid residue c. ATP yield obtained from FADH2 coming from the complete β-oxidation of the fatty acid residueConsider a 24:1 △cis-9 fatty acid in the mitochondrion. For each fatty acid given, determine the following. 1. Gross ATP from b-oxidation cycles 2. Gross ATP from acetyl CoA produced 3. Gross ATP from conversion of propionyl CoA (if applicable) 4. Total number of ATP deducted 5. Total net ATP
- Imagine a triglyceride comprised of (3) saturated C12 fatty acids. Calculate the number of ATP generated from the complete oxidation of one of these 12-carbon fatty acids to CO2 and water in the liver. Assume that each NADH = 2.5 ATP and each FADH2 = ETC generates 1.5 ATP. Any step that yields pyrophosphate as a product should be treated as an input (i.e. net loss) of (2) ATP.Deoxynucleotides (deoxynucleoside triphosphates) are the substrates for DNA synthesis. Calculate the number of glucose molecules that must be degraded to generate the energy required for the synthesis of 1000 deoxynucleotides used in DNA synthesis. Assume that glucose is oxidized completely to CO2 and H2O, the malate–aspartate shuttle is in operation, and NADPH is the equivalent of 4 ATPConsider the complete oxidation of one mole of simple TAG containing behenic acid residues (22:0). I. For one mole of the fatty acid residue, determine the following: b. What is the number of ATP yield obtained from NADH coming from the complete β-oxidation of the fatty acid residue
- Activation of the fatty acid (converting it to fatty acyl-SCoA) requires the expenditure of 2 ATPs. Use your answers from parts B and C to calculate the total number of ATPs generated from the metabolism of a saturated fatty acid with 18 carbon atoms including both the citric acid cycle and the ββbeta-oxidation pathway as well as the initial ATP required to produce the acyl-SCoA molecule that starts the process. Express your answer as an integer.(b) number of moles of ATP produced under aerobic glycolysis whereby pyruvate enters the mitochondrion for oxidative decarboxylation to generate acetyl-CoA that enters the citric acid cycle. Write the reac- tions for each step using words. They need not be balanced with respect to charge, protons released or consumed, and stoichiometry. Consider 2.5 ATP/NADH oxidized and 1.5 ATP/FADH2 oxidized. Enzymes need not be named. Compare the number of moles of ATP that are produced under anaerobic glycolysis to the Of the reactions producing ATP in the mitochondrion listed in part (b) above, which are not (c) influenced by the proton gradient across the inner mitochondrial membrane?All dehydrogenases of glycolysis and the TCA cycle use NAD* (E° for NAD*/NADH is -0.32V) as electron acceptor except succinate dehydrogenase (which uses FAD (E° for FAD/FADH2 is 0.05V). Based on AG° = -NFEº, show and state (1-2 sentences) why is FAD a more appropriate electron acceptor than NAD* in the dehydrogenation of succinate (consider the E° values of %3D Uptake in Na+ Vmax Uptake in absence of Na+ Vmax substrate K: (mM) Kt (mM) L-leucine 420 0.24 23 0.2 D-Leucine 310 4.7 5 4.7 L-valine 225 0.31 19 0.31 fumarate/succinate (E° = 0.031), NAD*/NADH, and the succinate dehydrogenase FAD/FADH2).